| Question | Answer |
|---|---|
| Formula for work | W=FxD |
| Formula for power | P=W?T |
| Wave speed formula | Wave speed = Wave length ? Wave period |
| Tommy lifted a box, he applied 30N and carried it for 2M, how much work was applied? | 30Nx2M=60J |
| Force | A push or pull exerted on an object (newtons) |
| Work | The use of force to move an object some distance (Joules) |
| Wave | Vibrations of particles |
| Medium | The material (solid, liquid, or gas) that waves travel through |
| Crest | The highest point on a wave |
| Trough | The lowest point on a wave |
| Longitudinal wave | Particles move parallel to the direction that the wave moves |
| Compression | When part of a wave becomes more compact |
| Rarefaction | When part of a wave spreads out |
| Transverse wave | Particles move perpendicular to the direction of the wave |
| Mechanical wave | Waves that require a medium |
| Electromagnetic waves | Waves are not disturbances in a physical medium |
| Amplitude | Measure of how far particles in the medium move from the rest position |
| Wavelength | The distance from any point on a wave until the next identical point |
| Frequency | The number of waves that pass a point in a given amount of time |
| Hertz (Hz) | The measure of frequency |
| Wave speed | How well a wave length moves through a medium |
| Wave length formula | Wave length = wave speed ? frequency |
| Lucy lifted an apple with 20J and held it for 2sec, how much power was used? | 20J?2sec=10watt |
| Bert wanted to know his work ability after using 80N and walking 4M | 80Nx4M=320J |
| If Sophie moved 10M and had a work of 80J, what was her force? | 80J?10M=8N |
| Bill had a work of 60J and 30N what was his distance? | 60J?30N=2M |
| Clary has a force of 80N and traveled 5M, what is her work? | 80Nx5M=400J |
| If a wave is 8in and the wave period is 4 waves per second what is the wave speed? | 8IN?4WPS=2 wave speed |
| A body builder has a force of 150N and has a work of 300J what was his distance? | 300J?150N=2M |
| Jace walked for 1H and had a work of 35J what was his power? | 35J?1H=35watt |
